Node.js

Node.js is an open-source, cross-platform runtime environment for developing server-side web applications. Simply Node JS called as server-side JavaScript. Node.js applications are written in JavaScript and can be run within the Node.js runtime on a wide variety of platforms, including OS X, Microsoft Windows, Linux, FreeBSD, NonStop, IBM AIX, IBM System z and IBM i. Its work is hosted and supported by the Node.js Foundation, a collaborative project at the Linux Foundation.

Node.js provides an event-driven architecture and a non-blocking I/O API designed to optimize an application's throughput and scalability for real-time web applications. It uses Google V8 JavaScript engine to execute code, and a large percentage of the basic modules are written in JavaScript. Node.js contains a built-in library to allow applications to act as a stand-alone web server.